Hydrocarbon-motor



' `oil pump, here shown suitably secured by UNITED STATES PATENT OFFICE.

JESSE G. AVINCENT, 0F DETROIT, MICHIGAN, ASSIGv-NOR TO PACKARD MOTOR CAR COMPANY, OF DETROIT, MICHIGAN, A. CORPORATION 0F MICHIGAN.

HYDROCARBON-MOTOR.

Specification of Letters Patent.

Patented July 12, 192,1. Divided and this applicationled August 30, 1916. Serial No. 117,773.

To all whom t may concern.'

c Be it known that I, Jnssn G. VINCENT, citizen of the United States, and resident of Detroit, Wayne county, State of Michigan, have 'invented certain new anduseful Improvements in Hydrocarbon-Motors, of

which the following is a specification.

This application is a division of application Serial No. 725,741, filed October 14, 1912, upon which Patent No. 1,265,145 was granted May 7, 1918, and relates to hydrocarbon motors and particularly to the means for supplying lubricant to the various parts thereof.

One object of the. invention is to provide a cam operated oil pump having in addition to the main overflow a supplementary overflow. y

. Another object of the invention is to provide a pump with a valve in the form of a piston which controls the outflow passage and-an overflow passage through which the excess oil is returned to the motor crank case.

Other objects will appear from the specication taken in connection with the draw- 'in s, in which igure 1 is' a transverse vertical section of an oil pump embodying one form of the invention;

Fi 2 is a horizontal sectional view on .the line 2-2, Figs. 1 and 3; Vand Fig. 3 is a vertical sectional view on the line 3 3, Fig. 2. .f v

Referring to the drawings 53 indicates an bolts 54 on a crank case 10 at an opening 10 and operatedby a shaft 28 as will be described later in detail. A pipe 55 leads from the supply to the intake side of the pump while a pipe 34 leads from the pump to the' arts to be lubricated. Another pipe 56 lea s from the delivery end .of the pump to anydesired auxiliary system, none being shown in the drawings.

The oil n pump consists of a( cast metal 'body, faced oil" at 57 to fitthe crank case 10,

. and provided with`- a'boss 58 extending into so plunger 60. This p unger. 60 is tlius'..sprin, .pressed against a cam or eccentric 61 formed .on the camshaft 28.- The plunger oper- Afthe o ening 10"in the. crank c'ase and suroun edrb4 as rin l`59control1in a um M y. y y p g p p comprising a body'lbored to form, the' pump i etes inthe bored out cylinder portion 62 of the pump and the valves 63 and 64 control the intake and outlet respectively, of the Pump' The pump is further provided with a control valve in the form of a piston 65, sliding in a cylindrical casing 66 and normally held against the stop 67 by spring 68 interposed between the piston 65 and a nut 'or cap 68', the latter being screw threaded into the casing 66. The nut 68 thus forms a stop for limiting the movement of the piston. When the piston is in the position shown in the drawings, it closes entirely the outlet ports 69 and 69a of the pump, but a slight pressure against the piston raises it and permits the oil to escape, and a greater pressure causes the piston to rise farther and exposes the overflow port 70, which returns the excess oil to the crank case, as will be seen particularly 'in Fig. 1. Another overflow passage 71 is provlded above the piston for returning to the crank case any oil that mayescape past the piston.

In the pump bod there is also formed a cylindrical casing 2, in which is supported a screen or strainer 73, through which the oil must pass lto reach 'the pump. A

passage 74 leads from the cylinder portion 72 to the intake valve 63 of the pump. There is also a passage 75 leading vertically through vthe `pump body to the top of the cylinder portlon 72. Thus the oil 'w-illpass from the intake pipe 55, through the assage 75 to the strainer 73; and-through t e c l: inder portion 72 and assage 74, to the 1n.-

take valve 63; thence t roughthe pump and outlet. valve 64, yto the Aoutlet ports 69 and 69, passage 34, and pipes 34 and 56.'

It will be seen that all of the parts ofthe pump are readily removable for inspection and cleaning.

Wh'le one embodiment'only is shown and described others may be used without departing'from the spirit 'or scope of the annexed claims.`

Having thus descrlbed my invention, what I claimI and. desire to secure by Letters Paty ent isc- ,l l

"1, 'In a hydrocarbon motor, an'oilf pump from an intake y to the strainer: casing, from the strainer casing to the pump cylinder, and from the pump' cylinder to the valve casing, and having mam and overflow oonduits from the valve casing, a piston in the pump cylinder, a control valve in the valve casin and a strainer in the strainer casing.

2. n a hydrocarbon motor, the combination with the crank case having an opening therein, of a pump secured to the crank case at said opening and having a main outflow passage and a plurality of Aoverflow passages,

said overflow passages communicating with the interior of the crank case ad- .jacent said opening and means controlling said outflow and one of 'said overflow passages.

3. In a hydrocarbon motor, the combination with the crank case havin an opening therein, of a pump secured to t e crank case at said opening and having a main outow passage and a plurality of overflow passages, said overflow passages communicating with the interiorof the crank case adjacent said opening and means automati-v said outflow and one of said overflow passages and automatically actuated under pressure from the pump to open said passages.

5. In a hydrocarbonmotor, the combination with the crank case havin an opening therein, of a pump secured to t e crank case at said opening and having a main outflow passage and a plurality of overflow pasa piston controllingv /sages, said overflow passages communicating with the interior of the crank case adjacent said opening, a piston controlling said outflow and one of said overflow passages and automatically actuated 'pressure from the pump to open first the outflow passage, then one ofthe overflow passages.

6. In a hydrocarbon motor, lubricant supplying means comprising in combination, a pump, a strainer and a relief device, said device having a plurality of overflow passages and a spring pressed piston normally closing one of said overflow passages.

7. In a hydrocarbon motor, lubricant supplying means comprising in combination, a pump, a strainer and a relief device, said device having two overflow passages, and a spring pressed piston, one of said overflow passages being normally closed by said piston and the other of said overflow passages being behind said Ypiston to return any oil that might leak past the piston.

8. In a lubricant supply means, a relief device comprising a chamber, a piston movable in saidv chamber, the walls of said chamber being provided with openings, through which the excess lubricant vis carried 0H and said piston being adapted to close one of said openings, and a spring in said chamber .bearing against said piston and impelling it to close said opening.

9. In a hydrocarbon motor, an oil distributing systernvhaving a passageway receivmg oil under pressure, a control valve for said system comprising a cylinder-having a main outlet and an overflow outlet beyond the main'outlet, aI piston controlling the outlets, and a spring to maintain the piston in-a-position normally closing both outlets and permitting it under pressure to first open the main outlet and later the overflow outlet.

In'testimony whereof I afliX m s1 JESSE G; VIYN nature. 

